/* Begin Plugin */
;;(function($){$.winFocus||($.extend({winFocus:function(){var a=!0,b=[];$(document).data("winFocus")||$(document).data("winFocus",$.winFocus.init());for(x in arguments)"object"==typeof arguments[x]?(arguments[x].blur&&$.winFocus.methods.blur.push(arguments[x].blur),arguments[x].focus&&$.winFocus.methods.focus.push(arguments[x].focus),arguments[x].blurFocus&&$.winFocus.methods.blurFocus.push(arguments[x].blurFocus),arguments[x].initRun&&(a=arguments[x].initRun)):"function"==typeof arguments[x]?b.push(arguments[x]):
"boolean"==typeof arguments[x]&&(a=arguments[x]);b&&(1==b.length?$.winFocus.methods.blurFocus.push(b[0]):($.winFocus.methods.blur.push(b[0]),$.winFocus.methods.focus.push(b[1])));if(a)$.winFocus.methods.onChange()}}),$.winFocus.init=function(){$.winFocus.props.hidden in document?document.addEventListener("visibilitychange",$.winFocus.methods.onChange):($.winFocus.props.hidden="mozHidden")in document?document.addEventListener("mozvisibilitychange",$.winFocus.methods.onChange):($.winFocus.props.hidden=
"webkitHidden")in document?document.addEventListener("webkitvisibilitychange",$.winFocus.methods.onChange):($.winFocus.props.hidden="msHidden")in document?document.addEventListener("msvisibilitychange",$.winFocus.methods.onChange):($.winFocus.props.hidden="onfocusin")in document?document.onfocusin=document.onfocusout=$.winFocus.methods.onChange:window.onpageshow=window.onpagehide=window.onfocus=window.onblur=$.winFocus.methods.onChange;return $.winFocus},$.winFocus.methods={blurFocus:[],blur:[],focus:[],
exeCB:function(a){$.winFocus.methods.blurFocus&&$.each($.winFocus.methods.blurFocus,function(b,c){this.apply($.winFocus,[a,!a.hidden])});a.hidden&&$.winFocus.methods.blur&&$.each($.winFocus.methods.blur,function(b,c){this.apply($.winFocus,[a])});!a.hidden&&$.winFocus.methods.focus&&$.each($.winFocus.methods.focus,function(b,c){this.apply($.winFocus,[a])})},onChange:function(a){var b={focus:!1,focusin:!1,pageshow:!1,blur:!0,focusout:!0,pagehide:!0};if(a=a||window.event)a.hidden=a.type in b?b[a.type]:
document[$.winFocus.props.hidden],$(window).data("visible",!a.hidden),$.winFocus.methods.exeCB(a);else try{$.winFocus.methods.onChange.call(document,new Event("visibilitychange"))}catch(c){}}},$.winFocus.props={hidden:"hidden"})})(jQuery);
/* End Plugin */
// Simple example
$(function() {
$.winFocus(function(event, isVisible) {
$('td tbody').empty();
$.each(event, function(i) {
$('td tbody').append(
$('<tr />').append(
$('<th />', { text: i }),
$('<td />', { text: this.toString() })
)
)
});
if (isVisible)
$("#isVisible").stop().delay(100).fadeOut('fast', function(e) {
$('body').addClass('visible');
$(this).stop().text('TRUE').fadeIn('slow');
});
else {
$('body').removeClass('visible');
$("#isVisible").text('FALSE');
}
});
})
body { background: #AAF; }
table { width: 100%; }
table table { border-collapse: collapse; margin: 0 auto; width: auto; }
tbody > tr > th { text-align: right; }
td { width: 50%; }
th, td { padding: .1em .5em; }
td th, td td { border: 1px solid; }
.visible { background: #FFA; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<h3>See Console for Event Object Returned</h3>
<table>
<tr>
<th><p>Is Visible?</p></th>
<td><p id="isVisible">TRUE</p></td>
</tr>
<tr>
<td colspan="2">
<table>
<thead>
<tr>
<th colspan="2">Event Data <span style="font-size: .8em;">{ See Console for More Details }</span></th>
</tr>
</thead>
<tbody></tbody>
</table>
</td>
</tr>
</table>